Which of the Following Is a True Statement About the U.S.Court

Which of the following is a true statement about the U.S.Court of Appeals?

A) Each of the judicial circuits has only one Court of Appeals.
B) Most review done by the Court of Appeals is by certiorari.
C) Review by the Court of Appeals is often done with the help of a jury, but a timely request must be made or else a jury trial will be waived.
D) All of the above are true.